chore(isClass): clean up code style

Author: wesleycho

Diff for: src/isClass/isClass.js

@@ -13,7 +13,7 @@ function ($animate) {
 
   return {
     restrict: 'A',
-    compile: function (tElement, tAttrs) {
+    compile: function(tElement, tAttrs) {
       var linkedScopes = [];
       var instances = [];
       var expToData = {};